FreeSerif

FreeSerif is a proportional-width typeface with modulated stroke,
descending from URW++ Nimbus Roman No9, which in turn descends from
Times.

Regular weight

ascent

800

descent

200

x-height

450

cap height

662

italic angle (italic)

-15.5°

stem width

102

Bold weight

ascent

800

descent

200

x-height

450

cap height

676

italic angle (italic)

-15.5°

stem width (capitals)

162, 159 (U), 155 (M)

stem width (small letters)

139

Superscripts and subscripts

Superscript and subscript numerals (in the U+2070-U+208F range) are
scaled 60.0% of their regular height and 64.9% of their regular width,
while their stroke width is 94 units, or 95/145 ≈ 64.9% of its
regular value. Baseline for superscripts is at 275 units, baseline for
subscripts is at -200 units.

FreeSans

FreeSans is a proportional-width typeface with uniform stroke,
descending from URW++ Nimbus Sans L, which in turn descends from
Helvetica.

Bold weight

ascent

800

descent

200

x-height

450

cap height

729

italic angle (oblique)

-12°

stem width (bold; capital letters)

150

stem width (bold; small letters)

140

height of minus sign (centre)

276

Superscripts and subscripts

Superscript and subscript numerals (in the U+2070-U+208F range) are
scaled 60.0% of their regular height and 64.3% of their regular width,
while their stroke width is 95 units, or 95/140 ≈ 68% of its
regular value. Baseline for superscripts is at 284 units, baseline for
subscripts is at -200 units.

FreeMono

FreeMono is a fixed-width typeface with uniform stroke, descending
from URW++ Nimbus Mono L, which in turn descends from Courier.

Regular weight

ascent

800

descent

200

width

600

x-height (regular)

417

cap height (regular)

563

italic angle (oblique)

-12°

stroke width (regular)

40 or 41

height of minus sign (centre)

279-282

Small capitals

Small capitals (in the IPA Extensions range) are 88% width and 74%
height of their regular counterparts, while preserving the same stroke
width (41 units).

Superscripts and subscripts

Superscript and subscript numerals (in the U+2070-U+208F range) are
scaled 58% of their regular height and width, while their stroke width
is 87% of the regular (36 units).

Symbols

While stroke width for letters varies between 40 and 41 units, it
has been set uniformly to 40 points for symbols.

Bold weight

ascent

800

descent

200

width

600

x-height (bold)

437

cap height (bold)

583

italic angle (oblique)

-12°

stroke width (regular)

40 or 41

height of minus sign (centre)

279-282

Small capitals

Small capitals (in the IPA Extensions range) are 88% width and 74%
height of their regular counterparts, while preserving the same stroke
width (100 units).

Superscripts and subscripts

Superscript and subscript numerals (in the U+2070-U+208F range) are
scaled 61% of their regular height and width, while their stroke width
is 67% of the regular (67 units).

Symbols

While stroke width for letters is 100 units, it has been set 84
points for symbols.